The LED industry chain can be divided into raw materials and equipment - epitaxial wafer - chip - package and product - application.
> In August 2006, the 14mil LED chip was mass-produced with a luminous intensity of 110mcd. After packaging, the white LED has a luminous efficiency of 60 lm/W.
> The 14mil LED chip produced in batch in May 2007 has a luminous intensity of 140-160mcd, and the luminous efficiency of the packaged white LED exceeds 73lm/W.
> In July 2007, the 40 mil high-power LED chip produced in batches has a luminous intensity of 3000 mcd, and the luminous efficiency of the white LED after packaging is 65 lm/W or more.
> The 14mil LED chip produced in batches in December 2007 has a luminous intensity of 180mcd and is packaged into a white LED with a luminous efficiency of 95lm/W.
At present, the internationally available 14mil high-power blue LED chip has a luminous intensity of 160 mcd; the 40 mil high-power blue LED has a luminous efficiency of 60 lm/W, and these high-brightness semiconductor LED chip production technologies are controlled by Cree and Lumileds, Japan. Nichia and Toyoda Gosei, as well as a few large companies headed by Osram in Europe. These companies use their core patents to adopt horizontal (simultaneous access to multiple countries) and vertical (continuous improvement of design, follow-up applications) expansion methods, and have placed a rigorous patent network around the world, trying to set up patent barriers. Control the market, limit and obstruct the development of other countries and enterprises, and occupy a favorable position in the competition.
Why do we dare to do it? Because we also master the core technology! Lu Zhicheng, president of Tongfang Co., Ltd., said that the semiconductor LED lighting industry is known as the blue sky industry that cannot see the dark clouds. This time, Tongfang raised RMB 800 million for high-brightness semiconductors. Mass production of LED chips. The prelude to the production of high-end semiconductor chips for semiconductors in China has been opened. After two years of industrial development, the technical indicators of our mass-produced products are higher than the international mainstream products. Our current goal is to transform the technological advantages into scale advantages and cost advantages, and participate in international competition. Tongfang has keenly captured the once-in-a-lifetime development opportunities. , began to focus on the global market, active layout, and embarked on a new voyage to the world's leading companies.
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